What is the primary purpose of mitosis in living organisms?

Mitosis is a critical process in living organisms primarily responsible for growth and the repair of tissues, as well as a method of asexual reproduction in some organisms. During mitosis, a single cell divides to produce two genetically identical daughter cells, allowing for an increase in cell number. This process is essential for growth as multicellular organisms develop from a single fertilized egg into complex structures consisting of numerous cells.

Additionally, mitosis plays a vital role in repairing damaged tissues. For instance, when you sustain an injury, mitosis facilitates the replacement of damaged cells in the affected area, ensuring the restoration of normal function. In certain organisms, mitosis is also a means of asexual reproduction, enabling them to produce offspring without the need for gametes or sexual reproduction. Overall, the primary functions of mitosis—growth, repair, and asexual reproduction—underline its significance in the life cycle of organisms.